+ Post New Thread
Results 1 to 6 of 6
  1. #1
    Newbie level 4
    Points: 81, Level: 1

    Join Date
    Nov 2016
    Posts
    5
    Helped
    0 / 0
    Points
    81
    Level
    1

    Three phase power supply circuit for three phase power meter

    Hi,

    can anyone suggest me a simple power supply circuit for three phase energy meter. the meter must be able to operate from any single phase when other phases are off.

    •   Alt6th January 2017, 07:48

      advertising

        
       

  2. #2
    Super Moderator
    Points: 40,220, Level: 49
    Awards:
    Most Frequent Poster

    Join Date
    Apr 2014
    Posts
    8,228
    Helped
    1989 / 1989
    Points
    40,220
    Level
    49

    Re: Three phase power supply circuit for three phase power meter

    Hi,

    I assume nobody can design a circuit without any specifications.

    Klaus



    •   Alt6th January 2017, 08:03

      advertising

        
       

  3. #3
    Full Member level 5
    Points: 2,020, Level: 10

    Join Date
    Sep 2013
    Posts
    243
    Helped
    88 / 88
    Points
    2,020
    Level
    10

    Re: Three phase power supply circuit for three phase power meter

    energy.png

    Please select DC to DC converter based on the line voltage and required voltage for energy meter



    •   Alt6th January 2017, 08:31

      advertising

        
       

  4. #4
    Newbie level 4
    Points: 81, Level: 1

    Join Date
    Nov 2016
    Posts
    5
    Helped
    0 / 0
    Points
    81
    Level
    1
    Quote Originally Posted by KlausST View Post
    Hi,

    I assume nobody can design a circuit without any specifications.

    Klaus
    hi,

    I want to measure three phase voltages through a micro-controller, i need 12V/2Amp input supply to my motherboard. i have decided to give the power supply from any one of the incoming three phases, say 'R-phase". whenever R-phase goes off, a intermediate circuit should transfer the power supply to other phase. so, my controller always stays ON.

    Quote Originally Posted by smijesh View Post
    Click image for larger version. 

Name:	Energy.png 
Views:	1 
Size:	21.0 KB 
ID:	135064

    Please select DC to DC converter based on the line voltage and required voltage for energy meter
    hi,
    could u explain about this circuit like what kind of component i have to use.



  5. #5
    Full Member level 5
    Points: 2,020, Level: 10

    Join Date
    Sep 2013
    Posts
    243
    Helped
    88 / 88
    Points
    2,020
    Level
    10

    Re: Three phase power supply circuit for three phase power meter

    You are not specified the 3 phase voltage
    Assume 320V line to neutral


    You should select 1A 1000V diode (three numbers )
    https://potentiallabs.com/cart/in400...FYUfaAodd6kHMw
    and
    an SMPS 230V to 12V@2A
    http://www.ebay.in/itm/111875814788?aff_source=Sok-Goog

    Hope it is helpful to you !!!



    •   Alt6th January 2017, 11:25

      advertising

        
       

  6. #6
    Advanced Member level 5
    Points: 10,996, Level: 25
    schmitt trigger's Avatar
    Join Date
    Apr 2013
    Location
    C4E4DEEEDCE6ECD2
    Posts
    1,867
    Helped
    602 / 602
    Points
    10,996
    Level
    25

    Re: Three phase power supply circuit for three phase power meter

    Is your AC source a 4 wire, withe wye connection?
    Or is it a 3 wire, delta connection?
    My batteries are recharged by "Helpful Post" ratings.
    If you feel that I've helped you, please indicate it as a Helpful Post



+ Post New Thread
Please login
--[[ ]]--